Heullo is Primetel’s SMS platform. Use it to send a single message or a campaign to thousands, receive and reply to customer messages, and send appointment reminders automatically from a connected calendar.

Send your first message

Three steps, about five minutes.

Understand what you are charged

Messages are charged per part. Knowing how parts work controls your costs.

Get started

1

Confirm your account has credits

Check the credit indicator in the header. Messages are charged against this balance, and a new account begins at zero.You can buy credits yourself by card, from the header indicator or from Settings → Billing & Usage. See Billing and usage.
2

Check your sender ID

A sender ID is the name recipients see as the origin of your message. Every account is supplied with one named HEULLO, already approved, so you can send straight away.To send under your own business name, request one on Sender IDs. Requests require approval before they can be used.
3

Send a message

Select Send SMS in the header, choose Single SMS, enter a recipient in international format such as +35799123456, write your message and select Send.
The message appears in SMS Management with a status. Sent confirms the mobile network accepted it.
Full instructions, including bulk campaigns and personalisation, are in Send SMS.

Core concepts

Read these before configuring anything substantial. Each one covers behaviour that affects cost or delivery.

Your account

What an account contains, and why there is no shared team workspace.

Credits

How messages are charged, and when credits are deducted and returned.

Message encoding

Why the alphabet you write in changes the cost of a message.

Statuses

What each message and campaign status indicates.

What you can do

Send SMS

Single messages and bulk campaigns, with personalisation and scheduling.

Receive messages

A live inbox for customer replies, with keyword routing.

Calendar reminders

Automatic reminders from Google or Microsoft 365.

Contacts

Contacts and lists, with CSV import.

Reports

Outbound, inbound and billing reporting by date range.

API

127 operations for integrating Heullo with your own systems.

Getting help

For account, credit and sender ID enquiries, contact your Primetel account manager.